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Ich weiß nicht, warum nach dem Login in Hauptaktivität Benutzername und Passwort nicht angezeigt ..... Ich sehe nur logout Button ... warum?Name und Passwort nicht in der Haupttätigkeit nach dem Login
Ich hoffe, dass Sie mir helfen können!
LOGIN ACTIVITY:
public class LoginActivity extends Activity {
private static final String TAG = RegisterActivity.class.getSimpleName();
private Button btnLogin;
private Button btnLinkToRegister;
private EditText inputNumeroTelefonico;
private EditText inputPassword;
private ProgressDialog pDialog;
private SessionManager session;
private SQLiteHandler db;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
inputNumeroTelefonico = (EditText) findViewById(R.id.numero_telefonico);
inputPassword = (EditText) findViewById(R.id.password);
btnLogin = (Button) findViewById(R.id.btnLogin);
btnLinkToRegister = (Button) findViewById(R.id.btnLinkToRegisterScreen);
// Progress dialog
pDialog = new ProgressDialog(this);
pDialog.setCancelable(false);
// SQLite database handler
db = new SQLiteHandler(getApplicationContext());
// Session manager
session = new SessionManager(getApplicationContext());
// Check if user is already logged in or not
if (session.isLoggedIn()) {
// User is already logged in. Take him to main activity
Intent intent = new Intent(LoginActivity.this, MainActivity.class);
startActivity(intent);
finish();
}
// Login button Click Event
btnLogin.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
String numero_telefonico = inputNumeroTelefonico.getText().toString().trim();
String password = inputPassword.getText().toString().trim();
// Check for empty data in the form
if (!numero_telefonico.isEmpty() && !password.isEmpty()) {
// login user
checkLogin(numero_telefonico, password);
} else {
// Prompt user to enter credentials
Toast.makeText(getApplicationContext(),
"Please enter the credentials!", Toast.LENGTH_LONG)
.show();
}
}
});
// Link to Register Screen
btnLinkToRegister.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent i = new Intent(getApplicationContext(),
RegisterActivity.class);
startActivity(i);
finish();
}
});
}
/**
* function to verify login details in mysql db
* */
private void checkLogin(final String numero_telefonico, final String password) {
// Tag used to cancel the request
String tag_string_req = "req_login";
pDialog.setMessage("Logging in ...");
showDialog();
StringRequest strReq = new StringRequest(Method.POST,
AppConfig.URL_LOGIN, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.d(TAG, "Login Response: " + response.toString());
hideDialog();
try {
JSONObject jObj = new JSONObject(response);
boolean error = jObj.getBoolean("error");
// Check for error node in json
if (!error) {
// user successfully logged in
// Create login session
session.setLogin(true);
// Now store the user in SQLite
String uid = jObj.getString("uid");
JSONObject user = jObj.getJSONObject("user");
String name = user.getString("name");
String cognome = user.getString("cognome");
String numero_telefonico = user.getString("numero_telefonico");
String created_at = user
.getString("created_at");
// Inserting row in users table
db.addUser(name,cognome, numero_telefonico, uid, created_at);
// Launch main activity
Intent intent = new Intent(LoginActivity.this,
MainActivity.class);
startActivity(intent);
finish();
} else {
// Error in login. Get the error message
String errorMsg = jObj.getString("error_msg");
Toast.makeText(getApplicationContext(),
errorMsg, Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
// JSON error
e.printStackTrace();
Toast.makeText(getApplicationContext(), "Json error: " + e.getMessage(), Toast.LENGTH_LONG).show();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Login Error: " + error.getMessage());
Toast.makeText(getApplicationContext(),
error.getMessage(), Toast.LENGTH_LONG).show();
hideDialog();
}
}) {
@Override
protected Map<String, String> getParams() {
// Posting parameters to login url
Map<String, String> params = new HashMap<String, String>();
params.put("numero_telefonico", numero_telefonico);
params.put("password", password);
return params;
}
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(strReq, tag_string_req);
}
private void showDialog() {
if (!pDialog.isShowing())
pDialog.show();
}
private void hideDialog() {
if (pDialog.isShowing())
pDialog.dismiss();
}
}
HAUPTTÄTIGKEIT:
public class MainActivity extends Activity {
private TextView txtName;
private TextView txtNumeroTelefonico;
private Button btnLogout;
private SQLiteHandler db;
private SessionManager session;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
txtName = (TextView) findViewById(R.id.name);
txtNumeroTelefonico = (TextView) findViewById(R.id.numero_telefonico);
btnLogout = (Button) findViewById(R.id.btnLogout);
// SqLite database handler
db = new SQLiteHandler(getApplicationContext());
// session manager
session = new SessionManager(getApplicationContext());
if (!session.isLoggedIn()) {
logoutUser();
}
// Fetching user details from SQLite
HashMap<String, String> user = db.getUserDetails();
String name = user.get("name");
String numero_telefonico = user.get("numero_telefonico");
// Displaying the user details on the screen
System.out.println(name+""+numero_telefonico);
txtName.setText(name);
txtNumeroTelefonico.setText(numero_telefonico);
// Logout button click event
btnLogout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
logoutUser();
}
});
}
/**
* Logging out the user. Will set isLoggedIn flag to false in shared
* preferences Clears the user data from sqlite users table
* */
private void logoutUser() {
session.setLogin(false);
db.deleteUsers();
// Launching the login activity
Intent intent = new Intent(MainActivity.this, LoginActivity.class);
startActivity(intent);
finish();
}
}
LOGIN ACTIVITY.XML:
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/white"
android:gravity="center"
android:orientation="vertical"
android:padding="10dp"
android:fitsSystemWindows="true">
<LinearLayout
android:layout_gravity="center_vertical"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="100dp"
android:paddingTop="56dp"
android:paddingLeft="24dp"
android:paddingRight="24dp" >
<ImageView
android:background="@drawable/signor_pomidor"
android:layout_gravity="center_horizontal"
android:layout_width="150dp"
android:layout_height="150dp" />
<EditText
android:id="@+id/numero_telefonico"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:background="@color/btn_login_bg"
android:hint="@string/hint_numero_telefonico"
android:inputType="textEmailAddress"
android:padding="10dp"
android:singleLine="true"
android:textColor="@color/input_login"
android:textColorHint="@color/input_login_hint" />
<EditText
android:id="@+id/password"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:background="@color/btn_login_bg"
android:hint="@string/hint_password"
android:inputType="textPassword"
android:padding="10dp"
android:singleLine="true"
android:textColor="@color/input_login"
android:textColorHint="@color/input_login_hint" />
<!-- Login Button -->
<Button
android:id="@+id/btnLogin"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dip"
android:background="@color/btn_login_bg"
android:text="@string/btn_login"
android:textColor="@color/btn_logut_bg" />
<!-- Link to Login Screen -->
<Button
android:id="@+id/btnLinkToRegisterScreen"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="40dp"
android:background="@null"
android:text="@string/btn_link_to_register"
android:textAllCaps="false"
android:textColor="@color/btn_logut_bg"
android:textSize="15dp" />
</LinearLayout>
</ScrollView>
MAIN ACTIVITY.XML:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="${relativePackage}.${activityClass}" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:gravity="center"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/welcome"
android:textSize="20dp" />
<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="10dp"
android:textColor="@color/lbl_name"
android:textSize="24dp" />
<TextView
android:id="@+id/numero_telefonico"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="13dp" />
<Button
android:id="@+id/btnLogout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="40dip"
android:background="@color/btn_logut_bg"
android:text="@string/btn_logout"
android:textAllCaps="false"
android:textColor="@color/white"
android:textSize="15dp" />
</LinearLayout>
</RelativeLayout>
GET USER DETAIL:
if (isset ($ _ POST [ 'numero_telefonico']) & & isset ($ _ POST [ 'password'])) {
// receiving the post params
$numero_telefonico = $_POST['numero_telefonico'];
$password = $_POST['password'];
// get the user by email and password
$user = $db->getUserByEmailAndPassword($numero_telefonico, $password);
if ($user != false) {
// use is found
$response["error"] = FALSE;
$response["uid"] = $user["unique_id"];
$response["user"]["name"] = $user["name"];
$response["user"]["cognome"] = $user["cognome"];
$response["user"]["numero_telefonico"] = $user["numero_telefonico"];
$response["user"]["created_at"] = $user["created_at"];
$response["user"]["updated_at"] = $user["updated_at"];
echo json_encode($response);
}
public function getUserByEmailAndPassword($numero_telefonico, $password) {
$stmt = $this->conn->prepare("SELECT * FROM users WHERE numero_telefonico = ?");
$stmt->bind_param("s", $numero_telefonico);
if ($stmt->execute()) {
$user = $stmt->get_result()->fetch_assoc();
$stmt->close();
// verifying user password
$salt = $user['salt'];
$encrypted_password = $user['encrypted_password'];
//$hash = $this->checkhashSSHA($salt, $password);
$hash = $password;
// check for password equality
if ($encrypted_password == $hash) {
// user authentication details are correct
return $user;
}
} else {
return NULL;
}
}
Bitte nur den ** wichtigen ** Code und nicht alle davon anhängen. Beschreiben Sie auch Ihre Fehler, was genau passiert? Versuchen Sie, im Debug-Modus zu laufen und setzen Sie Haltepunkte, um zu sehen, wo die Daten verloren gehen. – Vucko
Können Sie Ihre getUserDetails() -Methode posten – Punithapriya
Wie erhalten Sie die spezifischen Benutzerdetails? – Sanoop